We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Mono headset, over-the-head, boom mic, proprietary connector

Plantronics

Plantronics HW251N-CIS wired mono headset with proprietary connector

SKU CH-552D-J2W3T MPN HW251N-CIS

A wired mono headset with an over-the-head design, boom microphone and proprietary connector for desk-phone systems

  • ConnectionProprietary Interface
  • Wearing styleOver-the-head
  • SpeakersMono
  • VariantWired
  • Mono audio keeps calls clear with single-ear design
  • Over-the-head band stays secure during long shifts
  • Boom microphone positions close to mouth for voice pickup
  • Wired connection removes battery worries and signal dropouts
  • Proprietary connector fits compatible desk phones and systems

Mono headset with proprietary connector

The Plantronics HW251N-CIS is a new wired mono headset built for users who need a single-earpiece design with a boom microphone. Its over-the-head fit and semi-open form factor keep one ear free for ambient awareness while handling voice communication. The proprietary interface connector targets specific desk-phone or console systems rather than general PC audio ports.

Suited for single-ear monitoring

This model suits professionals who must stay aware of their surroundings while taking calls, such as reception staff or dispatch operators. Buyers who require stereo audio, dual-ear coverage or a universal analogue plug will not be served by this headset.

Proprietary interface connector

The defining specification is the proprietary interface connector, which only mates with compatible Plantronics amplifiers or quick-disconnect cables. Verify that your existing hardware provides this exact interface before purchase.

How it compares

Measured against everything we stock in Wired & Wireless Headsets, at today’s prices. Recalculated every night.

Price $49.99
Cheaper than about 58% of the 1,586 comparable items (median $60.99).

Specifications

Product
Brand namePLANTRONICS
VariantWired
Audio & video
Wearing styleOver-the-head
SpeakersMono
Ports & slots
ConnectionProprietary Interface

Questions about this item

Does the HW251N-CIS draw any power or generate heat during all-day use?

The HW251N-CIS is a passive wired headset with no active electronics, so it draws no power and produces no measurable heat during extended sessions.

What proprietary interface adapter or amplifier must I already own to connect this headset?

The HW251N-CIS terminates in a Plantronics proprietary connector, so you need a compatible Plantronics base unit, amplifier, or quick-disconnect cable that accepts that interface.

Will the mono earpiece and boom microphone work alongside my existing dual-ear headset for mixed monitoring?

Yes, the HW251N-CIS provides mono audio to one ear and a boom microphone, leaving your other ear free to hear a second headset or speakers simultaneously.

More in Wired & Wireless Headsets

Similar items